The patch
ASoC: Intel: Skylake: Add DSP module init and binding routines
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
From beb73b266a75602084361c5ef0baa5bc14637f4b Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Sat, 1 Aug 2015 19:40:43 +0530 Subject: [PATCH] ASoC: Intel: Skylake: Add DSP module init and binding routines
A module needs to be instantiated and then connected with other modules. On cleanup we need to disconnect the module. This is achieved by helpers module init, bind and unbind which are added here
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/skylake/skl-messages.c | 183 +++++++++++++++++++++++++++++++++ sound/soc/intel/skylake/skl-topology.h | 9 ++ 2 files changed, 192 insertions(+)
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c index 03a80ef..c435a51 100644 --- a/sound/soc/intel/skylake/skl-messages.c +++ b/sound/soc/intel/skylake/skl-messages.c @@ -573,3 +573,186 @@ static void skl_free_queue(struct skl_module_pin *mpin, int q_index) mpin[q_index].id.instance_id = 0; } } + +/* + * A module needs to be instanataited in DSP. A mdoule is present in a + * collection of module referred as a PIPE. + * We first calculate the module format, based on module type and then + * invoke the DSP by sending IPC INIT_INSTANCE using ipc helper + */ +int skl_init_module(struct skl_sst *ctx, + struct skl_module_cfg *mconfig, char *param) +{ + u16 module_config_size = 0; + void *param_data = NULL; + int ret; + struct skl_ipc_init_instance_msg msg; + + dev_dbg(ctx->dev, "%s: module_id = %d instance=%d\n", __func__, + mconfig->id.module_id, mconfig->id.instance_id); + + if (mconfig->pipe->state != SKL_PIPE_CREATED) { + dev_err(ctx->dev, "Pipe not created state= %d pipe_id= %d\n", + mconfig->pipe->state, mconfig->pipe->ppl_id); + return -EIO; + } + + ret = skl_set_module_format(ctx, mconfig, + &module_config_size, ¶m_data); + if (ret < 0) { + dev_err(ctx->dev, "Failed to set module format ret=%d\n", ret); + return ret; + } + + msg.module_id = mconfig->id.module_id; + msg.instance_id = mconfig->id.instance_id; + msg.ppl_instance_id = mconfig->pipe->ppl_id; + msg.param_data_size = module_config_size; + msg.core_id = mconfig->core_id; + + ret = skl_ipc_init_instance(&ctx->ipc, &msg, param_data); + if (ret < 0) { + dev_err(ctx->dev, "Failed to init instance ret=%d\n", ret); + kfree(param_data); + return ret; + } + mconfig->m_state = SKL_MODULE_INIT_DONE; + + return ret; +} + +static void skl_dump_bind_info(struct skl_sst *ctx, struct skl_module_cfg + *src_module, struct skl_module_cfg *dst_module) +{ + dev_dbg(ctx->dev, "%s: src module_id = %d src_instance=%d\n", + __func__, src_module->id.module_id, src_module->id.instance_id); + dev_dbg(ctx->dev, "%s: dst_module=%d dst_instacne=%d\n", __func__, + dst_module->id.module_id, dst_module->id.instance_id); + + dev_dbg(ctx->dev, "src_module state = %d dst module state = %d\n", + src_module->m_state, dst_module->m_state); +} + +/* + * On module freeup, we need to unbind the module with modules + * it is already bind. + * Find the pin allocated and unbind then using bind_unbind IPC + */ +int skl_unbind_modules(struct skl_sst *ctx, + struct skl_module_cfg *src_mcfg, + struct skl_module_cfg *dst_mcfg) +{ + int ret; + struct skl_ipc_bind_unbind_msg msg; + struct skl_module_inst_id src_id = src_mcfg->id; + struct skl_module_inst_id dst_id = dst_mcfg->id; + int in_max = dst_mcfg->max_in_queue; + int out_max = src_mcfg->max_out_queue; + int src_index, dst_index; + + skl_dump_bind_info(ctx, src_mcfg, dst_mcfg); + + if (src_mcfg->m_state != SKL_MODULE_BIND_DONE) + return 0; + + /* + * if intra module unbind, check if both modules are BIND, + * then send unbind + */ + if ((src_mcfg->pipe->ppl_id != dst_mcfg->pipe->ppl_id) && + dst_mcfg->m_state != SKL_MODULE_BIND_DONE) + return 0; + else if (src_mcfg->m_state < SKL_MODULE_INIT_DONE && + dst_mcfg->m_state < SKL_MODULE_INIT_DONE) + return 0; + + /* get src queue index */ + src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max); + if (src_index < 0) + return -EINVAL; + + msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index; + + /* get dst queue index */ + dst_index = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max); + if (dst_index < 0) + return -EINVAL; + + msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index; + + msg.module_id = src_mcfg->id.module_id; + msg.instance_id = src_mcfg->id.instance_id; + msg.dst_module_id = dst_mcfg->id.module_id; + msg.dst_instance_id = dst_mcfg->id.instance_id; + msg.bind = false; + + ret = skl_ipc_bind_unbind(&ctx->ipc, &msg); + if (!ret) { + src_mcfg->m_state = SKL_MODULE_UNINIT; + /* free queue only if unbind is success */ + skl_free_queue(src_mcfg->m_out_pin, src_index); + skl_free_queue(dst_mcfg->m_in_pin, dst_index); + } + + return ret; +} + +/* + * Once a module is instantiated it need to be 'bind' with other modules in + * the pipeline. For binding we need to find the module pins which are bind + * together + * This function finds the pins and then sends bund_unbind IPC message to + * DSP using IPC helper + */ +int skl_bind_modules(struct skl_sst *ctx, + struct skl_module_cfg *src_mcfg, + struct skl_module_cfg *dst_mcfg) +{ + int ret; + struct skl_ipc_bind_unbind_msg msg; + struct skl_module_inst_id src_id = src_mcfg->id; + struct skl_module_inst_id dst_id = dst_mcfg->id; + int in_max = dst_mcfg->max_in_queue; + int out_max = src_mcfg->max_out_queue; + int src_index, dst_index; + + skl_dump_bind_info(ctx, src_mcfg, dst_mcfg); + + if (src_mcfg->m_state < SKL_MODULE_INIT_DONE && + dst_mcfg->m_state < SKL_MODULE_INIT_DONE) + return 0; + + src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_id, out_max); + if (src_index < 0) + return -EINVAL; + + msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index; + dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_id, in_max); + if (dst_index < 0) { + skl_free_queue(src_mcfg->m_out_pin, src_index); + return -EINVAL; + } + + msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index; + + dev_dbg(ctx->dev, "src queue = %d dst queue =%d\n", + msg.src_queue, msg.dst_queue); + + msg.module_id = src_mcfg->id.module_id; + msg.instance_id = src_mcfg->id.instance_id; + msg.dst_module_id = dst_mcfg->id.module_id; + msg.dst_instance_id = dst_mcfg->id.instance_id; + msg.bind = true; + + ret = skl_ipc_bind_unbind(&ctx->ipc, &msg); + + if (!ret) { + src_mcfg->m_state = SKL_MODULE_BIND_DONE; + } else { + /* error case , if IPC fails, clear the queue index */ + skl_free_queue(src_mcfg->m_out_pin, src_index); + skl_free_queue(dst_mcfg->m_in_pin, dst_index); + } + + return ret; +} diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index e4b2a33..b7e8aa8 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -263,5 +263,14 @@ struct skl_module_cfg { struct skl_specific_cfg formats_config; };
+int skl_init_module(struct skl_sst *ctx, struct skl_module_cfg *module_config, + char *param); + +int skl_bind_modules(struct skl_sst *ctx, struct skl_module_cfg + *src_module, struct skl_module_cfg *dst_module); + +int skl_unbind_modules(struct skl_sst *ctx, struct skl_module_cfg + *src_module, struct skl_module_cfg *dst_module); + enum skl_bitdepth skl_get_bit_depth(int params); #endif